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Anti-rust nanocrystal alloy and fabrication method thereof

A nanocrystalline alloy and alloy technology, which is applied in the manufacture of inductors/transformers/magnets, magnetic materials, magnetic objects, etc., can solve the problems of complex polishing process, damage to the performance indicators of flaky nanocrystalline alloys, etc., and achieve improved amorphous formation. capacity, low iron loss, low coercivity effect

Active Publication Date: 2019-05-14
安徽智磁新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polishing process is complicated, including mechanical pretreatment, alkali washing and degreasing, hot water washing, dilute nitric acid, water washing, drying, etc. The whole process will seriously damage the performance indicators of the thin-sheet nanocrystalline alloy.

Method used

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  • Anti-rust nanocrystal alloy and fabrication method thereof
  • Anti-rust nanocrystal alloy and fabrication method thereof
  • Anti-rust nanocrystal alloy and fabrication method thereof

Examples

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Embodiment 1～6

[0027] (1) Put the raw materials into the smelting furnace according to the mass ratio shown in Table 1. After melting, keep the temperature at about 1540°C for about 20 minutes, add the purifying agent, stand still for several times to remove slag, and finally make the components in the alloy mother liquor evenly distributed. The respective contents of Al, O and N are below 10ppm; the purifying agent is composed of 55% silicon dioxide, 35% calcium oxide and 10% iron scale;

[0028] (2) Import the alloy mother liquid in the smelting furnace into the tundish, seal the nozzle with a stopper rod, and let it stand for about 30 minutes to make the temperature of the mother liquid even;

[0029] (3) Then lift the plug rod, the mother liquor enters the nozzle bag, and shoots through the nozzle onto the high-speed rotating cooling roller (using water-cooled copper roller), so that the alloy mother liquor 6 ~10 7 Cooling and forming at the speed of ℃ / sec, the spray casting pressure is...

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Abstract

The invention provides an anti-rust nanocrystal alloy and a fabrication method thereof, and belongs to the technical field of magnetic material preparation. The anti-rust nanocrystal alloy comprises the following element constituents based on percent by mass: 4.5-6.8% of Cr, 6.2-10.5% of Si, 1.5-3.6% of B, 1.0-2.5% of Mn, 3.2-7.5% of Nb, 0.6-2.0% of Cu and 0.5-1.2% of Ni with the balance being Fe.By optimizing alloy element constituents and proportion and improving a thermal treatment mode, the nanocrystal alloy product compatible with excellent anti-rust performance and favorable soft magnetic performance is obtained.

Description

technical field [0001] The invention relates to the technical field of magnetic material preparation, in particular to an antirust nanocrystalline alloy and a preparation method thereof. Background technique [0002] Nanocrystalline soft magnetic alloy refers to a soft magnetic alloy with nanocrystalline structure obtained by heat treatment on the basis of amorphous alloy, which has more excellent soft magnetic properties. In the field of power electronics, with the maturity of high-frequency inverter technology, the traditional high-power linear power supply has been largely replaced by high-frequency switching power supply, and in order to improve efficiency and reduce volume, the operating frequency of switching power supply is getting higher and higher. Higher requirements are put forward for the soft magnetic materials therein. The high-frequency loss of silicon steel is too large to meet the requirements of use; although the high-frequency loss of ferrite is low, ther...

Claims

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Application Information

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IPC IPC(8): H01F1/147H01F41/02
Inventor 邓毕力罗顶飞晋立丛冯英杰
Owner 安徽智磁新材料科技有限公司
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